1
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An unsaturated hydrocarbon X absorbs two hydrogen molecules on catalytic hydrogenation and also gives following reaction : JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English B(3 - oxo - hexanedicarboxylic acid) X will be :-
A
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 1
B
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 2
C
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 3
D
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 4
2
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the compounds A and B with molecular formula C9H18O3 , A is having higher boiling point the B. The possible structures of A and B are :
A
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 103 English Option 1
B
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 103 English Option 2
C
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 103 English Option 3
D
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 103 English Option 4
3
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Kjeldahl's method cannot be used to estimate nitrogen for which of the following compounds?
A
C6H5NH2
B
$${\rm{N}}{{\rm{H}}_2} - \mathop C\limits^{\mathop \parallel \limits^O } - {\rm{N}}{{\rm{H}}_2}$$
C
C6H5NO2
D
CH3CH2-C $$ \equiv $$ N
4
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Consider the following plots of rate constant versus $${1 \over T}$$ for four different reactions. Which of the following orders is correct for the activation energies of these reactions?

JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 95 English
A
Ec > Ea > Ed > Eb
B
Ea > Ec > Ed > Eb
C
Eb > Ea > Ed > Ec
D
Eb > Ed > Ec > Ea
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